title: Essential thrombocythaemia and polycythaemia vera presenting with pulmonary embolism mimicing pneumonia. Case reports.
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D003951:Diagnostic Errors; D005260:Female; D006801:Humans; D008297:Male; D011014:Pneumonia / Q000175:diagnosis*; D011087:Polycythemia Vera / Q000150:complications*; D011655:Pulmonary Embolism / Q000175:diagnosis* / Q000209:etiology; D013920:Thrombocythemia, Essential / Q000150:complications*; D013922:Thrombocytosis / Q000150:complications*